Greetings! In this guide I'll help walk you through configuring pf to prevent leaks when your OpenVPN connection drops. I'm using OpenBSD 7.6, so all steps should work as-is under that, but other OSes that also use pf, like FreeBSD and macOS, should still be compatible with a few changes in commands to achieve the same result. Setting up the OpenVPN daemon Before you do anything, I strongly suggest you make a backup of your current /etc/pf.conf and /etc/rc.conf.local like so,
